<template>
  <div class="add-page">
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>
      <el-steps :active="active - 0" finish-status="success" align-center>
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form
        :model="addForm"
        :rules="rules"
        ref="addFormRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          :tab-position="'left'"
          v-model="active"
          :before-leave="beforeTab"
          @tab-click="tabClick"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                expand-trigger="hover"
                :options="categList"
                :props="cateProps"
                v-model="addForm.goods_cat"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              v-for="item in manyTabelList"
              :key="item.attr_id"
              :label="item.attr_name"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  :label="tep"
                  v-for="(tep, i) in item.attr_vals"
                  :key="i"
                >
                </el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              v-for="item in onlyTabelList"
              :key="item.attr_id"
              :label="item.attr_name"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              action="https://lianghj.top:8888/api/private/v1/upload"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headersObj"
              :on-success="headerSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <el-button type="primary" class="addBtn" @click="addInfo"
              >添加商品</el-button
            >
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
      <img :src="previewPath" class="previewImg" />
    </el-dialog>
  </div>
</template>

<script>
import {
  addGoodInfoApi,
  getAttributesApi,
  getAttributesOnlyApi,
  getCategoriesListApi,
} from "@/api/goods";
import "quill/dist/quill.core.css";
import "quill/dist/quill.snow.css";
import "quill/dist/quill.bubble.css";

import { quillEditor } from "vue-quill-editor";
import _ from "lodash";
export default {
  name: "addPage",
  components: {
    quillEditor,
  },
  data() {
    return {
      active: "0",
      previewPath: "",
      previewVisible: false,
      categList: [],
      manyTabelList: [],
      onlyTabelList: [],
      cateProps: {
        label: "cat_name",
        value: "cat_id",
        children: "children",
      },
      addForm: {
        goods_name: "",
        goods_price: 0,
        goods_number: 0,
        goods_weight: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: "",
        attrs: [],
      },
      rules: {
        goods_name: [
          {
            required: true,
            message: "请输入商品名称",
            trigger: "blur",
          },
        ],
        goods_price: [
          {
            required: true,
            message: "请输入商品价格",
            trigger: "blur",
          },
        ],
        goods_number: [
          {
            required: true,
            message: "请输入商品数量",
            trigger: "blur",
          },
        ],
        goods_weight: [
          {
            required: true,
            message: "请输入商品重量",
            trigger: "blur",
          },
        ],
        goods_cat: [
          {
            required: true,
            message: "请输入商品分类",
            trigger: "blur",
          },
        ],
      },
      headersObj: {
        Authorization: this.$store.state.user.token,
      },
    };
  },
  created() {
    this.getCateList();
  },
  methods: {
    async getCateList() {
      const res = await getCategoriesListApi();
      // console.log(res);
      if (res.meta.status === 200) {
        this.categList = res.data;
      } else {
        this.$message.error("获取失败");
      }
    },
    handleChange() {
      // console.log(this.addForm.goods_cat);
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = [];
      }
    },
    beforeTab(actName, oldName) {
      if (oldName === "0" && this.addForm.goods_cat.length !== 3) {
        this.$message.error("请选择商品分类");
        return false;
      }
    },
    async tabClick() {
      const id = this.cateId;
      if (this.active === "1") {
        const res = await getAttributesApi(id, { sel: "many" });
        if (res.meta.status === 200) {
          res.data.forEach((item) => {
            item.attr_vals =
              item.attr_vals.length === 0 ? [] : item.attr_vals.split(" ");
          });
          this.manyTabelList = res.data;
        } else {
          this.$message.error("获取失败");
        }
      } else if (this.active === "2") {
        const res = await getAttributesOnlyApi(id, { sel: "only" });
        console.log(res);
        if (res.meta.status === 200) {
          this.onlyTabelList = res.data;
        } else {
          this.$message.error("获取失败");
        }
      }
    },
    handlePreview(file) {
      this.previewPath = file.response.data.url;
      this.previewVisible = true;
    },
    handleRemove(file) {
      // console.log(file);
      const filePath = file.response.data.tmp_path;
      const i = this.addForm.pics.findIndex((item) => {
        item.pic === filePath;
      });
      this.addForm.pics.splice(i, 1);
    },
    headerSuccess(response) {
      const picInfo = { pic: response.data.tmp_path };
      this.addForm.pics.push(picInfo);
    },
    async addInfo() {
      try {
        await this.$refs.addFormRef.validate();
        const form = _.cloneDeep(this.addForm);
        form.goods_cat = form.goods_cat.join(",");
        // console.log(this.onlyTabelList);
        // console.log(this.manyTabelList);
        this.manyTabelList.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(" "),
          };
          this.addForm.attrs.push(newInfo);
        });
        this.onlyTabelList.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals,
          };
          this.addForm.attrs.push(newInfo);
        });
        form.attrs = this.addForm.attrs;
        // console.log(this.addForm);
        // console.log(form);
        const res = await addGoodInfoApi(form);
        console.log(res);
        if (res.meta.status === 201) {
          this.$message.success("添加成功");
        } else {
          this.$message.error("添加失败");
        }
        this.$router.push("/goods");
      } catch (err) {
        this.$message.error("请填写必填的表单内容");
      }
    },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },
};
</script>
<style lang="scss" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
}
.el-steps {
  margin: 15px 0;
}
.el-step__title {
  font-size: 13px;
}
.el-checkbox {
  margin: 0 8px 0 0 !important;
}
.previewImg {
  width: 100%;
}
.quill-editor {
  ::v-deep .ql-editor {
    height: 300px;
  }
}
::v-deep.addBtn {
  margin-top: 15px;
}
</style>
